How to download progress from server to device?

I played dungeon quest first on my android tablet. I bought an android phone recently and wanted to transfer my game progress in my new phone. I opened dungeon quest, logged in my account, and the upload to server, and download to device function popped up. But I can’t click the DOWNLOAD button. Please do help me with my inquiry.

Did you make sure to recently upload from the previous device?

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Yes sir, I uploaded my progress to server.

Ok if you cannot download just do this. Remove the game, reinstall the gam and the the first thing you should do is logon to DQ account and the download data.